Hydrogen Storage Electrode Alloy Powders

We can supply hydrogen storage electrode alloy powders with different specifications. 

The chemical and physical characteristics can be adjusted according to the requirements of the customers.

1.Chemical compositions

Type C L T S E
Molecular Formula  ABx ABx ABx ABx ABx
x=5.1±0.10 x=5.1±0.10 x=4.85±0.10 x=5.15±0.10 x=5.25±0.10
 Major elements Mm(trE)(%) 32.7±1.0 32.6±1.0 34.0±1.0 32.4±1.0 32.2±1.0
Co(%) 10.0±0.5 10.0±0.5 10.2±0.5 5.0~9.0 3.0~7.0
Impurities (%) O ≤0.1 ≤0.1 ≤0.1 ≤0.1 ≤0.1
Fe ≤0.1 ≤0.1 ≤0.1 ≤0.1 ≤0.1
Mg ≤0.03 ≤0.03 ≤0.03 ≤0.03 ≤0.03
Zn ≤0.02 ≤0.02 ≤0.02 ≤0.02 ≤0.02
Ca ≤0.02 ≤0.02 ≤0.02 ≤0.02 ≤0.02
C ≤0.02 ≤0.02 ≤0.02 ≤0.02 ≤0.02
Pb ≤0.02 ≤0.02 ≤0.02 ≤0.02 ≤0.02
Electrochemical Property Cycle life (100%DOD) ≥500 ≥600 ≥400 ≥500 ≥500
Electrochemical capacity ≥320mAh/g ≥310mAh/g ≥300mAg/g ≥320mAh/g ≥300mAh/g
Voltage flat(1.2V/1.0V) ≥80% ≥80% ≥85% ≥80% ≥80%
Property of hydrogen absorbing and releasing Hydrogen absorbing capacity(Hab/m) 10atm >0.90H/M >0.90H/M >0.85H/M >0.90H/M >0.85H/M
3atm >0.80H/M >0.80H/M >0.65H/M >0.80H/M >0.78H/M
Equilibrium hydrogen pressure(at H/M=0.4) 0.4±0.1atm 0.35±0.1atm 1.3±0.1atm 0.5±0.1atm 0.45±0.1atm
Plateau Property ≤0.5 ≤0.5 ≤0.5 ≤0.5 ≤0.5
Recommend usages Suitable to produce high capacity battery Suitable to produce long cycle life battery Suitable to produce low temperature performance battery Suitable to produce power battery Suitable to produce economic battery

2.Physical characteristics

  Partied size recommended for dry process Partied size recommended for wet process
LSA D50 68±5um 44±5um
Sieve analysis size -100目(150um) 100% 100%
-140目(106um) ≥97% ≥99%
-200目(75um) ≥65% ≥85%
-325目(45um) ≥30% ≥60%
-400目(38um) ≤23% ≥40%
Apparent density ≥3.4g/cm3 ≥3.2g/cm3
Tap density ≥4.4g/cm3 ≥4.4g/cm3